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CTA与3D CE⁃MRA对糖尿病足患者下肢动脉硬化病变的诊断价值.pdf

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1、分子诊断与治疗杂志2023年7月第15卷第7期J Mol Diagn Ther,July 2023,Vol.15No.7论著基金项目:安徽省自然科学基金面上项目(1908085MH215)作者单位:1.临泉县人民医院 CT、MRI 室,安徽,阜阳 2364002.临泉县人民医院全科医学科,安徽,阜阳 2364003.临泉县人民医院血管外科,安徽,阜阳 236400通信作者:周莉,Email:CTA 与 3D CEMRA 对糖尿病足患者下肢动脉硬化病变的诊断价值周莉1刘芝克1董景宣2刘义杰3摘要 目的探究 CT 血管造影(CTA)与三维增强磁共振血管造影(3D CEMRA)对糖尿病足(DF)患者

2、下肢动脉硬化病变的诊断价值。方法选取临泉县人民医院 2020 年 7 月至 2022 年 7 月 120例糖尿病足患者资料,所有患者均行 CTA、3D CEMRA、数字减影血管造影(DSA)影像学检查。以 DSA检查为金标准,比较 CTA、3D CEMRA 与 DSA 对糖尿病足患者的下肢动脉硬化病变的诊断价值,分析不同检测方式对下肢各段动脉病变支数、狭窄程度分级的检出情况。结果1 684 段血管中,DSA 检测狭窄 693 段,非狭窄 991 段;CTA 检测 680 段狭窄,1 004 段非狭窄,其中漏诊 61 例,误诊 48 例,诊断敏感度为 91.20%,特异度为 95.15%,准确率

3、为 93.53%,kappa 值为 0.866;3D CEMRA 检测 687 段狭窄,997 段非狭窄,其中漏诊 44 例,误诊 38 例,诊断敏感度为 93.65%,特异度为 96.16%,准确率为 95.13%,kappa 值为 0.899;CTA、3D CEMRA 各段检出率与 DSA 比较均无统计学意义(c2=1.188、3.703、0.408,P0.05);CTA 诊断 0级的准确率分别为 89.56%、92.14%、88.30%、88.67%、91.80%,总准确率为 90.20%;3DCEMRA 诊断 0级的准确率分别为 91.04%、92.96%、88.20%、93.79%、

4、90.63%,总准确率为 91.63%。结论CTA 与 3D CEMRA 对 DF 患者下肢动脉硬化病变均具有较高的诊断价值,其中 3D CEMRA 对早期动脉血管狭窄的诊断准确性略高于 CTA。关键词 CT 血管造影;三维增强磁共振血管造影;数字减影血管造影;糖尿病足;下肢动脉硬化;动脉狭窄Diagnostic value of CTA and 3D CEMRA on lower extremity atherosclerotic lesions inpatients with diabetic footZHOU Li1,LIU Zhike1,DONG Jingxuan2,LIU Yijie

5、3(1.CT and MRI Room,Linquan County Peoples Hospital,Fuyang,Anhui,China,236400;2.Departmentof General Medicine,Linquan County Peoples Hospital,Fuyang,Anhui,China,236400;3.Department ofVascular Surgery,Linquan County Peoples Hospital,Fuyang,Anhui,China,236400)ABSTRACTObjectiveTo explore the diagnostic

6、 value of CT angiography(CTA)and threedimensional contrastenhanced magnetic resonance angiography(3D CEMRA)on lower extremity atherosclerotic lesions in patients with diabetic foot(DF).MethodsThe data of 120 patients with DF in Linquan CountyPeoples Hospital from July 2020 to July 2022 were retrospe

7、ctively analyzed.All patients underwent CTA,3DCEMRA and digital subtraction angiography(DSA).With DSA examination as the gold standard,the diagnostic value of CTA,3D CEMRA and DSA on lower extremity atherosclerotic lesions in patients with DF aswell as detection status of atherosclerotic lesion coun

8、t in each segment of lower extremity and grading of stenosis by different detection methods were compared.ResultsAmong 1 684 segments of blood vessels,DSA de 1229分子诊断与治疗杂志2023年7月第15卷第7期J Mol Diagn Ther,July 2023,Vol.15No.7tected 693 stenosis segments and 991 nonstenosis segments and CTA detected 680

9、 stenosis segments and 1,004 nonstenosis segments,and there were 61 cases of missed diagnosis and 48 cases of misdiagnosis,and thediagnostic sensitivity,specificity,accuracy rate and kappa value were 91.20%,95.15%,93.53%and 0.866.687 segments of stenosis and 997 segments of nonstenosis were detected

10、 by 3D CEMRA,and there were 44cases of missed diagnosis and 38 cases of misdiagnosis,and the diagnostic sensitivity,specificity,accuracyrate and kappa value were 93.65%,96.16%,95.13%and 0.899.There were 214 segments of superior genicular artery,353 segments of inferior genicular artery and 126 segme

11、nts of foot artery among 693 segments ofstenosis.There was no statistical significance in the detection rate of each segment by CTA and 3D CEMRAcompared to DSA(c2=1.188,3.703,0.408,P0.05).Among 1,684 segments of blood vessels,there were334 segments of stenosis grade 0,334 segments of grade,358 segme

12、nts of grade,297 segments of grade and 61 segments of grade.The accuracy rates of CTA in the diagnosis of grades 0 were 89.56%,92.14%,88.30%,88.67%and 91.80%respectively.The accuracy rates of 3D CEMRA in the diagnosis ofgrades 0 were 91.04%,92.96%,88.20%,93.79%and 90.63%respectively.ConclusionBoth C

13、TA and3D CEMRA have high diagnostic value on lower extremity atherosclerotic lesions in patients with DF,andthe accuracy of 3D CEMRA in diagnosing early arterial stenosis is slightly higher than that of CTA.KEY WORDS CT angiography;Threedimensional contrastenhanced magnetic resonance angiography;Dig

14、ital subtraction angiography;Diabetic foot;Lower extremity arteriosclerosis;Arterial stenosis糖尿病足(Diabetic foot,DF)是糖尿病患者下肢血管病变后引起的足部感染,临床表现为足部溃疡、疼痛、下肢麻木等,严重者可引起深层组织破坏,导致伤残、截肢等不良后果。因此,早期诊治下肢动脉病变对 DF 临床治疗十分重要1。血管数字减影(digital Subtraction Angiography,DSA)是目前临床上公认的下肢动脉病变诊断金标准,可有效判断血管病变类型及严重程度。但 DSA 为有创检

15、查,造影剂具有一定的伤害性且诊断费用较高,因而临床适用性有限2。CT 血管造影(CT angiography,CTA)具有扫描快、操作简单、微创等优点,对人体血管及周围组织的显影较为清晰,因而更易被大众接受3。三维增强磁共振血管造 影(3D contrast enhanced MR angiography,3DCEMRA)借助磁共振现象从人体获得电磁信号,可多角度、多方位清晰显示下肢动脉形态和血流动力学信息,对判断血管病变、狭窄、畸形有较高的价值4。目前关于 CTA 与 3D CEMRA 的临床诊断价值比较尚存在争议,对此,本研究通过分析二者在 DF 患者下肢动脉硬化病变中的诊断效果,探究其临

16、床应用价值,现报道如下:1资料与方法1.1一般资料选取临泉县人民医院 2020 年 7 月至 2022 年 7月 120 例糖尿病足患者资料。纳入标准:符合国际糖尿病足工作组(the international working groupon the diabetic foot,IWGDF)2019 版5DF 诊断指南中相关标准,存在下肢动脉硬化病变;年龄40岁;Wagner 分级为级;均无 DSA、CTA、3D CEMRA 检查禁忌症;临床资料完整;排除标准:合并严重肝肾等脏器功能障碍者、恶性肿瘤患者;外伤引起的下肢静脉损伤者;合并全身感染、酮症酸中毒、高钾血症患者。其中男性 73例,女性 47 例,年龄 4074 岁,平均(57.228.36)岁;体质量指数(body mass index,BMI)2126 kg/m2,平均(23.311.43)kg/m2;病程 213 年,平均(7.132.44)年;合并高血压 34 例,高血脂 14 例,冠心病21 例;入院症状下肢肿胀、疼痛 87 例,间接性跛行47 例,患肢远端动脉搏动减弱或消失 64 例,患肢脚趾溃疡、坏疽 31 例。共检

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